Outlet Mp3 via eBay offers the open-box Logitech H600 Wireless USB Headset, model no. 981-000341, for $28.99 with free shipping. That's $2 under our mention of an open-box model from last fall and $21 less than the lowest total price we could find for a new one. It features a noise-cancelling microphone and wireless range of up to 33 feet.

Note: This is missing the original packaging and manual (which can be downloaded here). No warranty information is available.